The NanoV4-MC is an especially small micro-controller and by the pin bar pointed out downwards, especially developed for working with boards or for integration. The integrated USB Type-C interface can be used to supply power to the circuit board and also to transfer programs to the microcontroller. In comparison to the NANO-V3, the NanoV4-MC has not only the USB-C interface but also 2 additional IO pins and an additional hardware I2C- and SPI-interface. The boot loader used is compatible with most existing Arduino libraries. Only original Atmel chips can be used. https://elecena.pl/product/28015982/joy-it-ard-nanov4-mc-arduino-board 2025-03-12 https://elecena.pl/product/28015982/joy-it-ard-nanov4-mc-arduino-board 2025-05-22 https://elecena.pl/product/28015982/joy-it-ard-nanov4-mc-arduino-board 2025-09-17 https://elecena.pl/product/28015982/joy-it-ard-nanov4-mc-arduino-board 2026-05-03